|
|||||||||
|
Thread Tools | Search this Thread |
February 20th, 2009, 11:26 PM | #1 |
New Boot
Join Date: Feb 2009
Location: gatineau, canada
Posts: 5
|
NeoScene: 720/60P video is accelerated 2x
Hi,
This technology is new to me, so my problem may be due to my inexperience. I used NeoScene (trial version) to convert a 720/60P AVCHD file. The resulting Cineform file plays back the audio at the normal speed, but the video plays back at *twice* the original speed. I used MediaInfo to compare the AVCHD and Cineform files (see below). Note that the duration of the video in the Cineform file is *half* of what it is in the original AVCHD file. What could be the cause of this issue? Thanks -- Guy St-Denis ************* START MediaInfo output ********************** Media file information obtained with MediaInfo 0.7.10.BETA ORIGINAL AVCHD FILE: ------------------- General ID : 1 Complete name : G:\media\video\hmc150_01\sdhc-20090111T2152\PRIVATE\AVCHD\BDMV\STREAM\00000.MTS Format : BDAV Format/Info : BluRay Video File size : 1.51 GiB Duration : 10mn 53s Overall bit rate : 19.9 Mbps Maximum Overall bit rate : 24.0 Mbps Video ID : 4113 (0x1011) Menu ID : 1 (0x1) Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.0 Format settings, CABAC : Yes Format settings, ReFrames : 4 frames Duration : 10mn 52s Bit rate : 18.7 Mbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16/9 Frame rate : 59.940 fps Resolution : 24 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.339 Audio ID : 4352 (0x1100) Menu ID : 1 (0x1) Format : AC-3 Format/Info : Audio Coding 3 Duration : 10mn 53s Bit rate mode : Constant Bit rate : 384 Kbps Channel(s) : 2 channels Channel positions : L R Sampling rate : 48.0 KHz Video delay : -67ms AFTER CONVERSION WITH NEOSCENE + AC3FILTER: ------------------------------------------ General Complete name : L:\media\video\temp\00000-001.avi Format : AVI Format/Info : Audio Video Interleave Format profile : OpenDML File size : 3.78 GiB Duration : 10mn 52s Overall bit rate : 49.7 Mbps Video Format : CineForm HD Codec ID : CFHD Codec ID/Info : CineForm 10-bit Visually Perfect HD (Wavelet) Duration : 5mn 26s Bit rate : 96.0 Mbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16/9 Frame rate : 59.940 fps Resolution : 24 bits Bits/(Pixel*Frame) : 1.738 Stream size : 3.65 GiB (97%) Audio Format : PCM Format settings, Endianness : Little Format settings, Sign : Unsigned Codec ID : 1 Codec ID/Hint : Microsoft Duration : 10mn 52s Bit rate mode : Constant Bit rate : 1 536 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Resolution : 16 bits Stream size : 120 MiB (3%) Interleave, duration : 21 ms (1.28 video frame) Interleave, preload duration : 2176 ms ************* END MediaInfo output ********************** |
February 21st, 2009, 10:07 AM | #2 |
CTO, CineForm Inc.
Join Date: Jul 2003
Location: Cardiff-by-the-Sea, California
Posts: 8,095
|
Need a sample of a source 60p file that does this.
__________________
David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman |
February 22nd, 2009, 11:17 AM | #3 |
New Boot
Join Date: Feb 2009
Location: gatineau, canada
Posts: 5
|
As mentioned before, I'm working my way through this new technology as well as learning the intricacies of HD and my new Panasonic HMC-150.
Here are my latest findings. The HMC-150 has several recording formats, summarized as follows: PH 1080/60i: 60 interlaced fields/s @ 21 Mbps HA 1080/60i: 60 interlaced fields/s @ 17Mbps HG 1080/60i: 60 interlaced fields/s @ 13Mbps HE 1080/60i: 60 interlaced fields/s @ 6 Mbps PH 1080/30P: 30 frames/s over 60 interlaced fields/s @ 21 Mbps PH 1080/24P: 24 frames/s native @ 21 Mbps PH 720/60P: 60 frames/s @ 21 Mbps PH 720/30P: 30 frames/s over 60 frames/s @ 21 Mbps PH 720/24P: 24 frames/s native @ 21 Mbps After testing NeoScene with every format to reproduce the issue I described at the start of the thread, I found that only the "PH 720/30P" format produced the unexpected (to me) results of speeded-up video. Contrary to my initial claims, the 720/60P format is *NOT* accelerated. So, at this point I'm not sure if NeoScene would somehow be able to detect a 30P (over 60P) stream and generate a 30P file that plays back @ 30FPS instead of 60FPS as it seems to be doing now... To be clear, I'm not saying this is a NeoScene bug, just wondering about options (technical or otherwise) to manage 30P (over 60P) footage. Any comments or suggestions are appreciated. Thanks -- Guy St-Denis P.S. This thread discusses this to some extent: 30p showing up as 59.94 frame rate - DVXuser.com -- The online community for filmmaking P.P.S. My AVCHD test files are available for download if anyone wants to look at them: http://www.mixtacoda.com/x/avchd/ph-1080-60i.MTS http://www.mixtacoda.com/x/avchd/ha-1080-60i.MTS http://www.mixtacoda.com/x/avchd/hg-1080-60i.MTS http://www.mixtacoda.com/x/avchd/he-1080-60i.MTS http://www.mixtacoda.com/x/avchd/ph-1080-30P.MTS http://www.mixtacoda.com/x/avchd/ph-1080-24P.MTS http://www.mixtacoda.com/x/avchd/ph-720-60p.MTS http://www.mixtacoda.com/x/avchd/ph-720-30p.MTS http://www.mixtacoda.com/x/avchd/ph-720-24p.MTS |
January 5th, 2011, 08:42 AM | #4 |
Major Player
Join Date: May 2003
Location: Chicago, IL
Posts: 991
|
I know this is an old thread but I'm having the same issue transcoding AVCHD footage from a Panasonic GF1 which is 30P video in a 59.94 wrapper. The output form NeoScene (v1.6.0) is 2x speed up on the video while audio remains the original speed. I've used the Maintain source frame rate option.
|
January 5th, 2011, 11:23 AM | #5 |
Regular Crew
Join Date: Nov 2008
Location: Solana Beach, CA
Posts: 142
|
The 720p/30 format is called "AVCHD Lite" and there is no clear way to detect it. There should be an option to specify this is the source format. On the Mac version there is a check box for AVCHD LIte which will retain the 30fps speed.
|
January 5th, 2011, 09:35 PM | #6 |
Major Player
Join Date: May 2003
Location: Chicago, IL
Posts: 991
|
Ah I'm guessing the version of NeoScene I have doesn't support this feature? can I still upgrade to a version that does offer this feature? I just noticed that you guys were offering free upgrades thru Aug 31st.. Missed out on it!
|
January 18th, 2011, 11:16 PM | #7 |
New Boot
Join Date: Dec 2010
Location: Hoboken, NJ
Posts: 11
|
I have version 5.2.8 and I can't convert any 720p 60fps clips all the way to completion (stops midway through the clip).
And the video of the portions of the footage that it does manage to convert play back at half speed. Audio, however, is normal speed. |
| ||||||
|
Thread Tools | Search this Thread |
|